Uploaded April 2018 | Updated September 2026, 7 minutes ago
Cordless drill working without problem on two small 9V alkaline batteries which can be recharged over 50 times with special constant volt charger. Tension setting should be set to value 1. It is best suited for screwing/unscrewing but also can be used for drilling. It works just as it were connected to original 18V Ni-Cd battery pack
Cordless drill working without problem on two small 9V alkaline batteries which can be recharged over 50 times with special constant volt charger. Tension setting should be set to value 1. It is best suited for screwing/unscrewing but also can be used for drilling. It works just as it were connected to original 18V Ni-Cd battery pack






![Universality of Free Fall (UFF) debunked ?
The following video shows the experiment,
inside of the (aluminium) drop capsule
in the drop tower (110 m) of ZARM.
During the fall of the test bodies
(Lithium [Li], Beryllium [Be], Boron [B],
Carbon [C],
Aluminum [Al], Iron [Fe], Lead [Pb])
you can see the different accelerations
Mainstream physics says that all bodies
should all have the same acceleration,
which is equal to the formulation
“inertial mass is equal to gravitational mass”
which is clearly not the case here..
So the Universality of Free Fall (UFF)
is not so Universal after all ?
Or maybe there is only inertial mass?
Was Einstein wrong? Universality of Free Fall (UFF) debunked ?](https://i.ytimg.com/vi/vQ7yw_4tUPE/mqdefault.jpg)



